贺兰山地区云凝结核浓度的测量及分析  

Measurement and Analysis of the Concentration of Cloud Condensation Nuclei in MT. Helanshan Area

作　　者：樊曙先[1] 安夏兰 

机构地区：[1]宁夏大学化学科学与工程系,宁夏银川750021 [2]宁夏气象科学研究所,宁夏银川750002

出　　处：《中国沙漠》2000年第3期338-340,共3页Journal of Desert Research

基　　金：国家气象科学基金云物理项目!( 93 -3 J-4 /60 10 );国家自然科学基金项目!( 4 95 65 0 10 )

摘　　要：利用热扩散型云凝结核计数器在贺兰山地区进行地面和空中云凝结核 ( CCN)观测。结果表明 ,在该地区夏季地面平均 CCN浓度为 610 cm- 3,最大浓度达 10 4cm- 3。沙尘天气现象没有明显地增加 CCN浓度。层状云中The concentration of cloud condensation nuclei is determined from surface and aircraft measurements at Mt. Helanshan area. Tests were performed using a horizontal thermal diffusion chamber from 1994 to 1995. The results show the mean values of concentrations are 610 cm\+\{-3\} at supersaturation of 0\^5% at ground level. The CCN concentration almost do not change with altitudes in stratus cloud over Ningxia area. The resource of sand and dust particles has little influence on the CCN concentrations.

关 键 词：云凝结核 测量 浓度 云物理学 

分 类 号：P426.51[天文地球—大气科学及气象学]